Assignment history

Inventors

The sole named inventor of U.S. Patent 6430408 is Jheroen Pieter Dorenbosch. At the time of filing on May 16, 2000, the patent was assigned to Motorola Inc., indicating that Dorenbosch was likely an employee of Motorola at that time. No unusual patterns, such as a mass exodus of inventors, are apparent from the provided information.

Original assignee

The original assignee named on the issued patent is Motorola Inc.

Motorola Inc. was a major American multinational telecommunications company that historically shipped a wide range of products embodying wireless communication claims, including cellular phones, base stations, and network infrastructure. Its primary line of business included the design and manufacture of telecommunications equipment, semiconductors, and electronic systems.

Motorola Inc. underwent significant restructuring in 2011, splitting into two independent public companies: Motorola Solutions (focused on public safety and enterprise communication) and Motorola Mobility (focused on mobile devices and home equipment). Motorola Mobility was subsequently acquired by Google in 2012, and then most of it was sold to Lenovo in 2014, with Google retaining a substantial portion of the IP, including this patent. Therefore, Motorola Inc. as a unified entity no longer operates in its original form, having been acquired and divided.

Assignment timeline

The following is a chronological list of every recorded assignment for U.S. Patent 6430408, as found in the Legal Events section of Google Patents, which typically mirrors USPTO records. Correspondent information is not available in the provided patent text.

• 2000-05-15 (executed) / recorded 2000-05-16 — Reel 010828/0775

  • Conveyance: Assignment of Assignors Interest
  • Assignor: Dorenbosch, Jheroen Pieter
  • Assignee: Motorola, Inc.
  • Correspondent: Not determinable from provided text.
  • Context: Standard initial assignment from inventor to corporate employer upon patent application filing.

• 2010-07-31 (executed) / recorded 2010-12-13 — Reel 025673/0558

  • Conveyance: Assignment of Assignor's Interest
  • Assignor: Motorola, Inc.
  • Assignee: Motorola Mobility, Inc.
  • Correspondent: Not determinable from provided text.
  • Context: Transfer of intellectual property within Motorola during corporate restructuring, specifically to the mobile device and home equipment segment.

• 2012-06-22 (executed) / recorded 2012-10-02 — Reel 029216/0282

  • Conveyance: Change of Name
  • Assignor: Motorola Mobility, Inc.
  • Assignee: Motorola Mobility LLC
  • Correspondent: Not determinable from provided text.
  • Context: Corporate name change or restructuring of Motorola Mobility following its acquisition by Google.

• 2014-10-28 (executed) / recorded 2014-11-27 — Reel 034488/0001

  • Conveyance: Assignment of Assignors Interest
  • Assignor: Motorola Mobility LLC
  • Assignee: Google Technology Holdings LLC
  • Correspondent: Not determinable from provided text.
  • Context: Transfer of patent ownership to an intellectual property holding subsidiary of Google Inc. (now Alphabet Inc.), as part of the management of the Motorola Mobility IP portfolio.

Timeline diagram

timeline
    title Ownership of US 6430408
    2000 : Filed by Motorola Inc
    2002 : Patent Issued
    2010 : Assigned to Motorola Mobility Inc
    2012 : Assigned to Motorola Mobility LLC
    2014 : Assigned to Google Technology Holdings LLC
    2020 : Patent Expired

NPE / troll-pattern signals

1. Shell-entity transfer — Unclear. The final assignee, Google Technology Holdings LLC, is an IP holding entity that is a subsidiary of a large operating company (Google/Alphabet Inc.). While its name suggests an IP-focused entity, it serves as an internal IP management vehicle for a major technology company, rather than a standalone shell company whose sole business is patent assertion against non-competitors. [cite: Reel 034488/0001, 2014-11-27]

2. Known asserter in the chain — Not present. None of the assignees (Motorola, Motorola Mobility, Google Technology Holdings LLC) are typically listed as known NPEs in public databases such as those maintained by RPX Insurance or Unified Patents.

3. Repeat correspondent across the chain — Unclear. Correspondent information is not available in the provided text, making it impossible to evaluate this signal.

4. Cascading transfers — Not present. There are three assignments recorded over a period of 14 years (2000, 2010, 2012, 2014). This does not indicate rapid, consecutive transfers characteristic of NPE patterns. [cite: Reel 010828/0775, 2000-05-16; Reel 025673/0558, 2010-12-13; Reel 029216/0282, 2012-10-02; Reel 034488/0001, 2014-11-27]

5. Pre-litigation transfer — Not present. A prior analysis indicated no known litigation involving U.S. Patent 6430408.

6. Bankruptcy fire-sale — Not present. While Motorola underwent significant corporate changes and Motorola Mobility was acquired by Google, these were not Chapter 7 or 11 bankruptcy proceedings that resulted in a fire-sale of all patent assets.

7. Privateering — Unclear. There is no public information or SEC filing data provided to suggest a privateering arrangement where Google Technology Holdings LLC asserts patents on behalf of a specific operating company against competitors. The transfer is more consistent with standard IP portfolio management within a large corporation.

8. Defensive aggregator (anti-NPE) — Not present. The chain does not terminate at a known defensive aggregator like RPX, AST, or LOT Network.

Verdict

Insufficient data

While the assignment chain primarily reflects corporate restructuring and IP management within operating companies (Motorola and Google), the lack of correspondent information and definitive evidence on the nature of Google Technology Holdings LLC's patent assertion strategy (beyond its role as an IP holding subsidiary) makes a high-confidence determination difficult. However, there are no strong positive signals for a typical NPE assertion pattern, and the patent has expired as of May 16, 2020, removing any current assertion potential.

You can verify the assignment records via the USPTO Patent Assignment Search: https://assignmentcenter.uspto.gov/